/*
 * Copyright 2024-2025 Embabel Software, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.embabel.agent.shell

import com.embabel.agent.event.logging.personality.character
import com.embabel.common.util.MessageGenerator
import com.embabel.common.util.color
import org.jline.utils.AttributedString
import org.springframework.shell.jline.PromptProvider

/**
 * Draw prompts from random messages from the given file
 */
open class MessageGeneratorPromptProvider(
    private val prompt: String,
    private val color: Int,
    private val messageGenerator: MessageGenerator,
) : PromptProvider {

    override fun getPrompt(): AttributedString {
        val msg = messageGenerator.generate()
        val (character, text) = if (":" in msg) {
            msg.split(":", limit = 2).map { it.trim() }
        } else {
            listOf("", msg.trim())
        }
        return AttributedString(
            character(character, text, color).color(color) + "\n$prompt> ".color(color),
        )
    }

}
